Hand anvil



R. C. TOLMIE Nov. 20, 1928.

HAND ANVIL Filed Feb. 9, 1925 Patented. Nov. 20, 1928.

narr'E'ofj Sram-si' RONALD C. TOLMIE, OF ROCK ISLAND, ILLINOIS, ASSIGNORTO'DEERE 8a COMPANY, O MOLINE, ILLINOIS, A CORPORATION OF I'INOIS.

Application filed February My invention relates to a hand anvil to bemore particularly employed in removing and replacing the led-gel' platesof guard fingers of the cutting apparatus of harvesters.

R-eplacement of ledger plates is a frequent necessity, because ofdam-age received in the harvest, for ledger plates are rigidly held inposition and the cutter bar, in operation, is in continuous motion,consequently when sticks or stones are caught between a ledger plate anda knife section, the suddenly applied force of such an interruption isdestructive, particularly to the ledger plate, and it is exceptionalthat the lat-ter escapes damage. To remove a damaged ledger plate andsubstitute for it one in a perfect condition is an exceedingly vexatiousoperationiin the absence of proper tools, and the object of my inventionis to provide a hand anvil having a countersink in vits face conformingto the shape of the underbody of a hai'vester guard finger whereby theoperation of removing and replacing a ledger plate is facilitated.

Referring to the drawings in which similar numerals indicate identicalparts- Figure 1 is a perspective view of my device.

Figure 2 is a perspectiveview illustrating the application of my deviceto one of its uses.

J'igure 3 is a reduced sectional view showing my device and the guardfinger of a harvester in position for the removal of a ledger plate. i

Figure et is a plan view of part of the finger bar of a harvester.

F igure 5 is a perspective view of a guard finger, and

Figure 6 is a bottom perspectiveview of Figure 5.

My device is to be used primarily for removing worn, damaged or brokenledger` plates from the Cutting apparatus of a harvester and replacingthem with perfect plates, and while this operation is performed .bypositioning the anvil on the ground or floor beneath the cutter bar of aharvester, it can be utilized with the cutter bar of a mower when thelatter is raised and held in a Vertical position. TheV anvil 1 is a castbody with a, preferably, rectangular base in which is a 9, 1925. SerialNo. 7,800,

longitudinal groove 2 and a transverse groove 8 to provide a better handgrip and also to lessen the weight4 of the anvil which otherwise wouldbe excessive.

The face Zl of the anvil Vl has a rearwardly Vinclined surface for thegreater part of itsthe face 4, and to one side of the groove 5 is a stud8, preferably of steel.

Then itis desired Ato remove a ledger plate, the anvil 1 rests on theground, or on a floor, beneath the 'guard finger from which the ledgerplate is to be removed, the finger 10 resting snugly in the grooves 5and 6, With the rivet 11 directly above the opening 7, as shown inFignre 3; a punch 12 and hammer 13 are utilized to drive the rivet' 11which drops through the opening 7, freeing the ledger plate so that itcan be readily removed;

a new ledger plate is then positioned, and a new rivet isV inserted, thehead of the rivet filling in the opening in the ledger plate, the anvill is then handled to place the stud 8 against the rivet head where it isfirmly held orntcrz.. v

until the end of the rivet., projecting below the guard finger, is upsetby use of a haminerso that the new ledger plate is rigidly secured inposition.

My device is simple, economical, and of convenicnt size to be carriedinto the field as part of the tool equipment of a' harvester.

VVhat I claim is- 1. A hand anvil having a longitudinal and atransversegroove in its face7 the longitudi-i nal groove widening and increasingin depth toward the transverse groove, and a Vertical hole through theanvil adjacent the interseci tionof said grooves.

V2. A hand anvil having a longitudinal and a transverse groove in itsface, the longitudinal groove Widening and increasing in depth saidgrooves, and a Stud in the face of the 10 toward the transverse grooveand decreasng anvil to one side of the center thereof. v in depthrearward therefrom, and a Vertical 4. A hand anvil having a longitudinalhole through the anvil adjacentthe intersecgroove in its face Wideningtoward one end, a

tion of said grooves. Vertical hole through said anvil intermediate 3. Ahand anvil having' a longitndinal and the length of the groove, and aStud project- 15 a transverse groove in its face, the longitudiing fromthe face of the anvl at one side of nal groove Widening rearvvardly, aVertical the groove. hole in the anvil adjacent the interseetion ofRONALD C. TOLMIE.

